Add introduction to the crash_summary dataset

This is part of the `choosing a dataset` section.

concepts/choosing_a_dataset.md

@@ -54,6 +54,10 @@ This section describes the derived datasets we provide to make analyzing this da
 
 {% include "/datasets/batch_view/crash_aggregates/intro.md" %}
 
+## crash_summary
+
+{% include "/datasets/batch_view/crash_summary/intro.md" %}
+
 # Appendix
 
 ## Mobile Metrics

datasets/batch_view/crash_summary/intro.md

@@ -1,3 +1,26 @@
-Work in progress.
-Work is being tracked
-[here](https://bugzilla.mozilla.org/show_bug.cgi?id=1364174).
+The `crash_summary` table is the most direct representation of a crash ping.
+
+#### Contents
+
+The `crash_summary` table contains one row for each crash ping.
+Each column represents one field from the crash ping payload,
+though only a subset of all crash ping fields are included.
+
+#### Accessing the Data
+
+The data is stored as a parquet table in S3 at the following address.
+See [this cookbook](/cookbooks/parquet.md) to get started working with the data in Spark.
+```
+s3://telemetry-parquet/crash_summary/v1/
+```
+
+`crash_summary` is accessible through re:dash.
+Here's an [example query](https://sql.telemetry.mozilla.org/queries/4793/source).
+
+#### Further Reading
+
+The technical documentation for `crash_summary` is located in the
+[telemetry-batch-view documentation](https://github.com/mozilla/telemetry-batch-view/blob/master/docs/CrashSummary.md).
+
+The code responsible for generating this dataset is
+[here](https://github.com/mozilla/telemetry-batch-view/blob/master/src/main/scala/com/mozilla/telemetry/views/CrashSummaryView.scala)